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17 October 2023 Numerical simulation of meteorological effects of deforestation using an atmospheric finite element model
M. S. Yudin
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Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127806J (2023) https://doi.org/10.1117/12.2690976
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation
Abstract
To assess the meteorological effects of deforestation due to an extensive clearing in a forest stand with tall trees, a nonhydrostatic atmospheric model designed for a compressible fluid and based on finite elements is used. For this purpose, test calculations are carried out in a two-dimensional forest area extending over a horizontal distance of 15 km. The area consists of tall coniferous trees with a height of 20 meters. A large area of 5 km is deforested in the central part of the forest stand. The model is calculated for a day of physical time with a parameterization scheme that allows assessing the dynamic and thermodynamic effects of the forest surface with a rather coarse resolution in terms of the spatial variables in the numerical model. The results of the simulations show a nearly stable daytime stratification of the potential temperature near the surface, and an almost neutral stratification at night inside the forest, which are phenomena well described theoretically and in good agreement with the data of observations.
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M. S. Yudin "Numerical simulation of meteorological effects of deforestation using an atmospheric finite element model", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127806J (17 October 2023); https://doi.org/10.1117/12.2690976
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KEYWORDS
Atmospheric modeling
Meteorology
Temperature distribution
Finite element methods
Numerical simulations
Vegetation
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